main.cpp Example File
piechartdrilldown/main.cpp
#include "drilldownchart.h"
#include "drilldownslice.h"
#include <QtWidgets/QApplication>
#include <QtWidgets/QMainWindow>
#include <QtCore/QRandomGenerator>
#include <QtCharts/QChartView>
#include <QtCharts/QLegend>
#include <QtCharts/QPieSeries>
QT_CHARTS_USE_NAMESPACE
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QMainWindow window;
DrilldownChart *chart = new DrilldownChart();
chart->setTheme(QChart::ChartThemeLight);
chart->setAnimationOptions(QChart::AllAnimations);
chart->legend()->setVisible(true);
chart->legend()->setAlignment(Qt::AlignRight);
QPieSeries *yearSeries = new QPieSeries(&window);
yearSeries->setName("Sales by year - All");
const QStringList months = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
const QStringList names = {
"Jane", "John", "Axel", "Mary", "Susan", "Bob"
};
for (const QString &name : names) {
QPieSeries *series = new QPieSeries(&window);
series->setName("Sales by month - " + name);
for (const QString &month : months)
*series << new DrilldownSlice(QRandomGenerator::global()->bounded(1000), month, yearSeries);
QObject::connect(series, &QPieSeries::clicked, chart, &DrilldownChart::handleSliceClicked);
*yearSeries << new DrilldownSlice(series->sum(), name, series);
}
QObject::connect(yearSeries, &QPieSeries::clicked, chart, &DrilldownChart::handleSliceClicked);
chart->changeSeries(yearSeries);
QChartView *chartView = new QChartView(chart);
chartView->setRenderHint(QPainter::Antialiasing);
window.setCentralWidget(chartView);
window.resize(800, 500);
window.show();
return a.exec();
}